CN207426822U - Stator punching, stator and motor - Google Patents
Stator punching, stator and motor Download PDFInfo
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- CN207426822U CN207426822U CN201721474250.4U CN201721474250U CN207426822U CN 207426822 U CN207426822 U CN 207426822U CN 201721474250 U CN201721474250 U CN 201721474250U CN 207426822 U CN207426822 U CN 207426822U
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- punching
- stator
- sulculus
- centre bore
- large trough
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Abstract
The utility model provides a kind of stator punching, stator and motor, stator punching includes punching body, centre bore is provided on punching body, sulculus and large trough are provided on punching body, with large trough along the circumferentially disposed of centre bore, punching body is set sulculus by axial symmetry of the center line of the notch of sulculus.The stator punching of the utility model solves the problems, such as that stator punching of the prior art causes motor cost increase.
Description
Technical field
The utility model is related to motor field, in particular to a kind of stator punching, stator and motor.
Background technology
Freezer compressor, which is divided into, currently on the market determines two kinds of compressors of frequency and frequency conversion.Frequency motor pole number is determined for the two poles of the earth, power supply
The difference of frequency, then rotating speed is different.For 60Hz frequency compression electromechanics machines, rated speed generally in 3550-3580r/min,
For 50Hz frequency compression electromechanics machines, rated speed is generally in 2950-2980r/min.Variable-frequency motor is controlled by controller,
Rotating speed is generally in 1000-4500r/min.
The compressor of frequency motor is determined for using, due to high rotation speed operation, motor electromagnetic noise is big.Refrigerator total noise of centrifuge without
Method reduces, variable-frequency motor can low-frequency operation, but control panel need to be increased, compressor high expensive.
In addition, the frequency bipolar machine of determining for being conventionally used to freezer compressor has a disadvantage that：
1st, teeth portion flux density is higher, and flux density height in yoke portion is unevenly distributed, and causes electric efficiency low, electromagnetic noise is big；
2nd, punching groove area is big, and groove area utilization rate is relatively low, since groove area fails to make full use of, cause motor temperature rise and
Magnetic leakage factor increase, it is necessary to increase winding dosage increase magnetic flux improve magnetic loading, ensure motor overload ability it is constant and
The reduction of motor temperature rise, so adds motor cost；
3rd, since punching temperature raises, the service life and reliability of motor are reduced.
Utility model content
The main purpose of the utility model is that a kind of stator punching, stator and motor are provided, to solve in the prior art
Stator punching the problem of causing motor cost increase.
To achieve these goals, the first aspect according to the present utility model provides a kind of stator punching, including punching
Piece body is provided with centre bore on punching body, sulculus and large trough is provided on punching body, sulculus is with large trough along centre bore
It is circumferentially disposed, punching body using the center line of the notch of sulculus as axial symmetry set.
Further, punching body further includes：Bracket groove, bracket groove along the circumferentially disposed of centre bore, bracket groove be arranged at sulculus and
Between large trough.
Further, sulculus is arranged in pairs, and two paired sulculuses are oppositely arranged, in the notch of opposite two sulculuses
Heart line coincides, and punching body is set by axial symmetry of the center line of the notch of two opposite sulculuses.
Further, sulculus is 4, and 4 sulculuses are uniformly distributed.
Further, 2 bracket grooves and 3 large troughs are provided between two adjacent sulculuses.
Further, bracket groove and large trough are divided into 4 groups by 4 sulculuses, and every group of bracket groove is 2, and large trough is 3, wherein,
3 large troughs are located between 2 bracket grooves.
Further, the separation between adjacent sulculus and bracket groove is d, wherein, 4.3mm≤d≤4.5mm.
Further, along the radial direction of centre bore, the outer peripheral distance of notch to the punching body of large trough is a, edge
The radial direction of centre bore, the outer peripheral distance of notch to the punching body of sulculus is c, wherein, a ＞ c.
Further, along the radial direction of centre bore, the outer peripheral distance of notch to the punching body of large trough is a, edge
The radial direction of centre bore, the outer peripheral distance of notch to the punching body of bracket groove is b, wherein, a ＞ b.
Further, the groove area of large trough is A, and the groove area of bracket groove is B, wherein, B=(79%~81%) * A.
Further, the groove area of large trough is A, and the groove area of sulculus is C, wherein, C=(39%~41%) * A.
Further, a diameter of D of centre bore, wherein, 74.8mm≤D≤75.2mm.
The second aspect according to the present utility model provides a kind of stator, and including stator punching, stator punching is above-mentioned
Stator punching.
3rd aspect according to the present utility model, provides a kind of motor, and including stator, stator is above-mentioned stator.
The stator punching of the utility model on punching body by being provided with sulculus and large trough, so as to improve punching
The groove area utilization rate of body.Wherein, centre bore is provided on punching body, sulculus and large trough are set along the circumferential direction of centre bore
It puts, punching body is set by axial symmetry of the center line of the notch of sulculus.The stator punching of the utility model passes through in punching sheet
Sulculus and large trough are provided on body can improve the groove area utilization rate of punching body, and it is very fast to avoid motor temperature rise, and subtracts
Small magnetic leakage factor, reduces winding dosage with this, so as to reduce motor cost, solves stator punching of the prior art and lead
The problem of causing motor cost increase.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
New schematic description and description does not form the improper restriction to the utility model for explaining the utility model.
In the accompanying drawings：
Fig. 1 shows the structure diagram of the embodiment of stator punching according to the present utility model；
Fig. 2 shows the structure diagram of the punching slot of stator punching according to the present utility model.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, punching body；11st, centre bore；12nd, sulculus；13rd, bracket groove；14th, large trough；20th, point is detained；30th, mounting hole.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
The utility model provides a kind of stator punching, please refers to Fig.1, and stator punching includes punching body 10, punching sheet
Centre bore 11 is provided on body 10, sulculus 12 and large trough 14 are provided on punching body 10, sulculus 12 is with large trough 14 along center
Hole 11 it is circumferentially disposed, punching body 10 using the center line of the notch of sulculus 12 as axial symmetry set.
The stator punching of the utility model on punching body 10 by being provided with sulculus 12 and large trough 14, so as to carry
The groove area utilization rate of high punching body 10.Wherein, centre bore 11,14 equal edge of sulculus 12 and large trough are provided on punching body 10
Centre bore 11 it is circumferentially disposed, punching body 10 using the center line of the notch of sulculus 12 as axial symmetry set.The utility model
Stator punching can improve the groove area utilization of punching body 10 by being provided with sulculus 12 and large trough 14 on punching body 10
Rate, it is very fast to avoid motor temperature rise, and reduces magnetic leakage factor, and winding dosage is reduced with this, so as to reduce motor cost,
Solve the problems, such as that stator punching of the prior art causes motor cost increase.
In order to further improve the groove area utilization rate of punching body 10, as shown in Figure 1, punching body 10 also wraps
It includes：Bracket groove 13, bracket groove 13 is circumferentially disposed along centre bore 11, and bracket groove 13 is arranged between sulculus 12 and large trough 14.
In the present embodiment, by being provided with bracket groove 13 on punching body 10, wherein, week of the bracket groove 13 along centre bore 11
To setting, bracket groove 13 is arranged between sulculus 12 and large trough 14.
In the present embodiment, sulculus 12, bracket groove 13 and large trough 14, sulculus 12,13 and of bracket groove are provided on punching body 10
Large trough 14 along the circumferentially disposed of centre bore 11, wherein, bracket groove 13 is arranged between sulculus 12 and large trough 14.By sulculus 12,
The setting of bracket groove 13 and large trough 14 can improve the groove area utilization rate of punching body 10, and it is very fast to avoid motor temperature rise, and
Magnetic leakage factor is reduced, winding dosage is reduced with this, so as to reduce motor cost.
For the specific set-up mode of sulculus 12, sulculus 12 is arranged in pairs, and two paired sulculuses 12 are oppositely arranged, relatively
The center lines of notch of two sulculuses 12 coincide, punching body 10 using the center line of the notch of two opposite sulculuses 12 as
Axial symmetry is set.
In the present embodiment, by the way that sulculus 12 is arranged in pairs, two paired sulculuses 12 are oppositely arranged, wherein, relatively
The center lines of notch of two sulculuses 12 coincide so that punching body 10 is with the slot of two opposite sulculuses 12
The center line of mouth is that axial symmetry is set.
For the concrete structure of a specific stator punching of quadrupole motor, sulculus 12 is 4, and 4 sulculuses 12 are uniform
Distribution.
In the present embodiment, sulculus 12 is 4, and 4 sulculuses 12 are uniformly distributed, and the angle between two neighboring sulculus 12 is
90 degree, punching body 10 is set by axial symmetry of the center line of the notch of two opposite sulculuses 12.
Correspondingly, for the setting of bracket groove 13 and large trough 14,2 13 Hes of bracket groove are provided between adjacent two sulculuses 12
3 large troughs 14.
In the present embodiment, 2 bracket grooves 13 and 3 large troughs 14 are provided between two adjacent sulculuses 12, i.e. one small
12 corresponding 2 bracket grooves 13 of slot and 3 large troughs 14.
For the specific arrangement situation of sulculus 12, bracket groove 13 and large trough 14,4 sulculuses 12 separate bracket groove 13 and large trough 14
For 4 groups, every group of bracket groove 13 is 2, and large trough 14 is 3, wherein, 3 large troughs 14 are located between 2 bracket grooves 13.
In the present embodiment, bracket groove 13 and large trough 14 are divided into 4 groups by 4 sulculuses 12, every group of bracket groove 13 is 2
A, large trough 14 is 3, wherein, 3 large troughs 14 are located between 2 bracket grooves 13.Specific arrangement mode is, by side clockwise
To a, sulculus 12, followed by a bracket groove 13, followed by 3 large troughs 14, followed by a bracket groove and be one small
Slot 12, is cycled successively, is total up to 4 groups.
In the present embodiment, 4 sulculuses, 12,8 bracket grooves 13 and 12 large troughs 14 are provided on punching body 10.
For the separation between adjacent sulculus 12 and bracket groove 13, as shown in Figure 1, adjacent sulculus 12 and bracket groove 13 it
Between separation for d, wherein, 4.3mm≤d≤4.5mm.
In the present embodiment, the separation between adjacent sulculus 12 and bracket groove 13, adjacent bracket groove 13 and large trough 14 it
Between separation and adjacent large trough 14 and large trough 14 between separation be d, wherein, 4.3mm≤d≤4.5mm.
In the present embodiment, the separation between adjacent sulculus 12 and bracket groove 13 is the facewidth on punching body 10.
In order to reducing stator yoke flux density as much as possible, motor performance is promoted, along the radial direction of centre bore 11, greatly
The notch of slot 14 to punching body 10 outer peripheral distance for a, along the radial direction of centre bore 11, the notch of sulculus 12 is to rushing
The outer peripheral distance of piece body 10 is c, wherein, a ＞ c.
In the present embodiment, along the radial direction of centre bore 11, the notch of large trough 14 to the outer peripheral of punching body 10
Distance is a, and along the radial direction of centre bore 11, the outer peripheral distance of notch to the punching body 10 of sulculus 12 is c.By setting
A ＞ c are equipped with, can ensure wide in same stator punching, stator yoke width is maximum, reduces stator yoke flux density, is promoted
Motor performance.
Correspondingly, along the radial direction of centre bore 11, the outer peripheral distance of notch to the punching body 10 of large trough 14 is
A, along the radial direction of centre bore 11, the outer peripheral distance of notch to the punching body 10 of bracket groove 13 is b, wherein, a ＞ b.
In the present embodiment, a ＞ b, a ＞ c and b ＞ c.
In the present embodiment, the outer edge of punching body 10 has 4 diagonal planes, and 4 diagonal planes are along punching body 10
Circumferential outer edge is uniformly distributed；Wherein, the connection of the notch of two opposite large troughs 14 is overlapped with the diagonal of punching body 10.
Stator punching large trough is symmetrical in 30 diagonal of stator punching mounting hole, i.e., large trough is distributed in four diagonal angles of stator punching.
For the area relationship of large trough 14 and bracket groove 13, the groove area of large trough 14 is A, and the groove area of bracket groove 13 is B,
In, B=79%~81%*A.
Correspondingly, this area relationship to large trough 14 and sulculus 12, the groove area of large trough 14 are A, the groove area of sulculus 12
For C, wherein C=39%~41%*A.
Preferably, a diameter of D of centre bore 11, wherein, 74.8mm≤D≤75.2mm.
In the present embodiment, stator punching is quadrupole motor stator punching, and the punching scheme motor is compared with traditional the two poles of the earth
Motor can reduce motor output torque fluctuation size, reduce compressor operating noise；In the case of performance, relatively traditional the two poles of the earth
Motor, motor, which folds height, can reduce by 25%；11 internal diameter of centre bore is set, and relatively traditional bipolar machine increases internal diameter, improves line Bao Li
With rate.
The stator punching of the utility model is come out by high velocity ram machine punching, by detaining 20 riveting of point, punching between each punching
Automatic snapping during punching.
It please refers to Fig.1 and Fig. 2, the size design of the stator punching of the utility model is as follows：
In the present embodiment, large trough 14, bracket groove 13 and sulculus 12 are referred to as punching slot, and Fig. 2 is the structural representation of punching slot
Figure.
1st, the diameter D of centre bore 11：74.8~Φ of Φ 75.2mm；
2nd, stator punching broadside size M：124.5~125.5mm；
3rd, stator punching broadside size N：129.5~130.5mm；
4th, stator punching facewidth d：4.3~4.5mm；
5th, stator punching width of rebate C：1.4~1.6mm；
6th, notch height Hs0：0.65~0.85mm；
7th, slot shoulder height degree：Hs1：1.3~1.5mm；
8th, groove depth Hs2 (large trough 14, bracket groove 13 and sulculus 12) is respectively：15.1~15.3mm, 12.7~12.9mm,
6.7~6.9mm；
9th, slot bottom fillet R：2.45~2.55mm.
The utility model additionally provides a kind of stator, and including stator punching, stator punching is above-mentioned stator punching.
The utility model additionally provides a kind of motor, and including stator, stator is above-mentioned stator.
It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：
The stator punching of the utility model on punching body 10 by being provided with sulculus 12 and large trough 14, so as to carry
The groove area utilization rate of high punching body 10.Wherein, centre bore 11,14 equal edge of sulculus 12 and large trough are provided on punching body 10
Centre bore 11 it is circumferentially disposed, punching body 10 using the center line of the notch of sulculus 12 as axial symmetry set.The utility model
Stator punching can improve the groove area utilization of punching body 10 by being provided with sulculus 12 and large trough 14 on punching body 10
Rate, it is very fast to avoid motor temperature rise, and reduces magnetic leakage factor, and winding dosage is reduced with this, so as to reduce motor cost,
Solve the problems, such as that stator punching of the prior art causes motor cost increase.
Advantageous effect：
1st, compared with bipolar machine, the stator punching of the utility model, motor speed is the 1/2 of bipolar machine, and motor is transported
During row, electromagnetic noise is small, i.e. compressor operating noise is low；
2nd, opposite frequency changer, can be reduced the compressor of rotating speed, but be not required to controller, and compressor cost drops significantly
It is low；
3rd, opposite bipolar machine, output torque fluctuation is smaller, and output torque is more steady；
4th, stator punching teeth portion flux density and yoke portion flux density tend to balance, and reduce the electromagnetic noise of motor, improve motor effect
Rate；
5th, since stator yoke teeth portion balances, stator punching utilization rate is increased, motor can make short graduation, can substantially reduce
Compressor height.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps clearly listed or unit, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (14)
1. including punching body (10), centre bore (11), feature are provided on the punching body (10) for a kind of stator punching
It is, sulculus (12) and large trough (14) are provided on the punching body (10), and the sulculus (12) is equal with the large trough (14)
Along the circumferentially disposed of the centre bore (11), the punching body (10) is using the center line of the notch of the sulculus (12) as axis pair
Claim to set.
2. stator punching according to claim 1, which is characterized in that the punching body (10) further includes：
Bracket groove (13), the bracket groove (13) are arranged at described small along the circumferentially disposed of the centre bore (11), the bracket groove (13)
Between slot (12) and the large trough (14).
3. stator punching according to claim 2, which is characterized in that the sulculus (12) is arranged in pairs, paired two
The sulculus (12) is oppositely arranged, and the center line of the notch of opposite two sulculuses (12) coincides, the punching body
(10) set by axial symmetry of the center line of the notch of two opposite sulculuses (12).
4. stator punching according to claim 3, which is characterized in that the sulculus (12) is 4,4 sulculuses
(12) it is uniformly distributed.
5. stator punching according to claim 4, which is characterized in that be provided between two adjacent sulculuses (12)
2 bracket grooves (13) and 3 large troughs (14).
6. stator punching according to claim 5, which is characterized in that 4 sulculuses (12) by the bracket groove (13) and
The large trough (14) is divided into 4 groups, and every group of the bracket groove (13) is 2, and the large trough (14) is 3, wherein, described in 3
Large trough (14) is located between 2 bracket grooves (13).
7. the stator punching according to any one of claim 2 to 6, which is characterized in that the adjacent sulculus (12) and
Separation between the bracket groove (13) is d, wherein, 4.3mm≤d≤4.5mm.
8. according to the stator punching described in claim 2, which is characterized in that along the radial direction of the centre bore (11), institute
The outer peripheral distance for stating notch to the punching body (10) of large trough (14) is a, along the radial direction side of the centre bore (11)
To, the outer peripheral distance of notch to the punching body (10) of the sulculus (12) is c, wherein, a ＞ c.
9. according to the stator punching described in claim 2, which is characterized in that along the radial direction of the centre bore (11), institute
The outer peripheral distance for stating notch to the punching body (10) of large trough (14) is a, along the radial direction side of the centre bore (11)
To, the outer peripheral distance of notch to the punching body (10) of the bracket groove (13) is b, wherein, a ＞ b.
10. stator punching according to claim 2, which is characterized in that the groove area of the large trough (14) is A, in described
The groove area of slot (13) is B, wherein, B=(79%~81%) * A.
11. stator punching according to claim 2, which is characterized in that the groove area of the large trough (14) is A, described small
The groove area of slot (12) is C, wherein, C=(39%~41%) * A.
12. stator punching according to claim 1, which is characterized in that a diameter of D of the centre bore (11), wherein,
74.8mm≤D≤75.2mm。
13. a kind of stator, including stator punching, which is characterized in that the stator punching is any one of claim 1 to 12 institute
The stator punching stated.
14. a kind of motor, including stator, which is characterized in that the stator is the stator described in claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474250.4U CN207426822U (en) | 2017-11-06 | 2017-11-06 | Stator punching, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474250.4U CN207426822U (en) | 2017-11-06 | 2017-11-06 | Stator punching, stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426822U true CN207426822U (en) | 2018-05-29 |
Family
ID=62307939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721474250.4U Expired - Fee Related CN207426822U (en) | 2017-11-06 | 2017-11-06 | Stator punching, stator and motor |
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| Country | Link |
|---|---|
| CN (1) | CN207426822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872107A (en) * | 2017-11-06 | 2018-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching, stator and motor |
-
2017
- 2017-11-06 CN CN201721474250.4U patent/CN207426822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872107A (en) * | 2017-11-06 | 2018-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching, stator and motor |
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Granted publication date: 20180529 Termination date: 20211106 |